2x squared +1 (-)x squared -7 is
a.) x squared +8
Answer:
y = 3
Step-by-step explanation:
Use the slope formula:
y2 - y1
m = ------------- , which here becomes
x2 - x1
y - 5 -1
m = ------------- = -----
8 - (-2) 5
Solve this for x. Cross multiplication yields:
5y - 25 = -1(10) = -10
Then 5y = 15, and y = 3
We know that for each triangle made up by dashed line segment forms 30° angles, so, for example, ∠GOH is 30° and then ∠HOI is 30°
Rotating the shape 240° around the centre is the same as counting in 30°
The triangle GOH will first fit the triangle HOI then triangle IOJ and so on until it has completed 8 times 30° turn. Its final position is shown in the diagram below
Step-by-step explanation:
for mean w. you have to add up all the values (cat weights) and divide them by the number of cats
and for median w. you need to compare the values from the smallest to the largest and cross out the numbers from the ends. Since there are 6 cats here (odd number) you will have 2 values left. Add them up and divide them by 2 (since there are 2)